US10883735B2 - Water pump of an air conditioner as well as method and device for controlling the same - Google Patents

Water pump of an air conditioner as well as method and device for controlling the same Download PDF

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US10883735B2
US10883735B2 US16/080,821 US201816080821A US10883735B2 US 10883735 B2 US10883735 B2 US 10883735B2 US 201816080821 A US201816080821 A US 201816080821A US 10883735 B2 US10883735 B2 US 10883735B2
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Prior art keywords
air conditioner
water pump
turn
state
controlling
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US20200049359A1 (en
Inventor
Jianming Tan
Lin Yang
Hui Zhang
Youfu Xie
Kai Yu
Qunbo LIU
Handong Xue
Weiqiang LI
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Gree Electric Appliances Inc of Zhuhai
Gree Wuhan Electric Appliances Co Ltd
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Gree Electric Appliances Inc of Zhuhai
Gree Wuhan Electric Appliances Co Ltd
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Assigned to GREE ELECTRIC APPLIANCES (WUHAN) CO., LTD., GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI reassignment GREE ELECTRIC APPLIANCES (WUHAN) CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LI, WEIQIANG, LIU, Qunbo, TAN, JIANMING, XIE, Youfu, XUE, Handong, YANG, LIN, YU, KAI, ZHANG, HUI
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22Means for preventing condensation or evacuating condensate
    • F24F13/222Means for preventing condensation or evacuating condensate for evacuating condensate
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/30Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/41Defrosting; Preventing freezing
    • F24F11/42Defrosting; Preventing freezing of outdoor units
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/30Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/36Drip trays for outdoor units
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/50Control or safety arrangements characterised by user interfaces or communication
    • F24F11/61Control or safety arrangements characterised by user interfaces or communication using timers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63Electronic processing
    • F24F11/64Electronic processing using pre-stored data
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/85Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using variable-flow pumps
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/04Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/04Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/048Monitoring; Safety
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/10Temperature
    • F24F2110/12Temperature of the outside air
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/20Humidity
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/20Humidity
    • F24F2110/22Humidity of the outside air
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00Control inputs relating to system states
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00Control inputs relating to system states
    • F24F2140/30Condensation of water from cooled air
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00Program-control systems
    • G05B2219/20Pc systems
    • G05B2219/26Pc applications
    • G05B2219/2614HVAC, heating, ventillation, climate control

Definitions

  • the present disclosure relates to the technical field of air conditioner, and specially relates to an water pump of an air conditioner as well as a method and device for controlling the same.
  • the condensed water generated by the outdoor unit of an air conditioner under a heating mode is directly discharged to the outdoor through the discharge hole.
  • a water pump In the case that the water pump is not turned on in time, it is likely to cause the water in the chassis of the outdoor unit to be frozen, and it is likely to cause that the water pump is damaged when the water pump is turned on afterwards.
  • the water pump is actuated for an excessively long time or keeps running, it is also possible to cause the problem of energy waste.
  • a method for controlling an water pump of an air conditioner which comprises: obtaining a state of a liquid level switch of the air conditioner, a working state of the air conditioner and an outdoor ambient temperature; and determining a turn-on timing of the water pump of the air conditioner according to the state of the liquid level switch of the air conditioner, the working state of the air conditioner and the outdoor ambient temperature obtained.
  • the step of determining a turn-on timing of the water pump of the air conditioner according to the state of the liquid level switch of the air conditioner, the working state of the air conditioner and the outdoor ambient temperature obtained includes: detecting whether the liquid level switch of the air conditioner is in a turn-on state; and if the liquid level switch of the air conditioner is in the turn-on state, turning on the water pump of the air conditioner; or if the liquid level switch of the air conditioner is not in a turn-on state, determining whether a current working state of the air conditioner is a heating mode, and determining a turn-on timing of the water pump of the air conditioner according to the outdoor ambient temperature when the current operation state of the air conditioner is a heating mode.
  • the step of determining a turn-on timing of the water pump of the air conditioner according to the outdoor ambient temperature when the current operation state of the air conditioner is a heating mode includes: comparing the outdoor ambient temperature with a preset frosting threshold temperature; and turning on the water pump of the air conditioner when the outdoor ambient temperature is greater than the frosting threshold temperature; or judging whether the air conditioner is in a defrosting mode when the outdoor ambient temperature is less than or equal to the frosting threshold temperature, and turning on the water pump of the air conditioner when the air conditioner is in the defrosting mode.
  • the control method further comprises: monitoring whether the liquid level switch of the air conditioner is off; starting a timing operation if monitoring that the liquid level switch of the air conditioner is off; and turning off the water pump of the air conditioner if the timing reaches a first preset time threshold.
  • control method further comprises: monitoring an on-and-off state of the air conditioner; starting a timing operation if monitoring that the air conditioner is powered off; and turning off the water pump of the air conditioner if the timing reaches a third preset time threshold.
  • control method further comprises: monitoring an on-and-off state of the defrosting mode; starting a timing operation if monitoring that the defrosting mode stops; and turning off the water pump of the air conditioner if the timing reaches a second preset time threshold.
  • device for controlling a water pump of an air conditioner comprising: an obtaining module, for obtaining a state of a liquid level switch of the air conditioner, a working state of the air conditioner and an outdoor ambient temperature; and a control module, for determining a turn-on timing of the water pump of the air conditioner according to the state of the liquid level switch of the air conditioner, the working state of the air conditioner and the outdoor ambient temperature obtained.
  • control module includes: a detecting module, for detecting whether the liquid level switch of the air conditioner is in a turn-on state; a first turn-on controlling unit, for turning on the water pump of the air conditioner when the liquid level switch of the air conditioner is in a turn-on state; and a second turn-on controlling unit, for determining whether a current working state of the air conditioner is a heating mode when the liquid level switch of the air conditioner is not in a turn-on state, and determining a turn-on timing of the water pump of the air conditioner according to the outdoor ambient temperature when the current working state of the air conditioner is a heating mode.
  • control module further includes: a monitoring unit, for monitoring whether the liquid level switch of the air conditioner is off after turning on the water pump of the air conditioner when the liquid level switch of the air conditioner is in a turn-on state; a timing unit, for starting a timing operation after monitoring that the liquid level switch of the air conditioner is off; and a turn-off controlling unit, for turning off the water pump of the air conditioner if the timing reaches a first preset time threshold.
  • the second turn-on controlling unit further includes: a comparing subunit, for comparing the outdoor ambient temperature with a preset frosting threshold temperature when the current operation state of the air conditioner is a heating mode; a first turn-on controlling subunit, for turning on the water pump of the air conditioner when the outdoor ambient temperature is greater than the frosting threshold temperature; and a second turn-on controlling subunit, for judging whether the air conditioner is in a defrosting mode when the outdoor ambient temperature is less than or equal to the frosting threshold temperature, and turning on the water pump of the air conditioner when the air conditioner is judged to be in the defrosting mode.
  • the second turn-on controlling unit further includes: a first monitoring subunit, for monitoring an on-and-off state of the air conditioner after turning on the water pump of the air conditioner when the outdoor ambient temperature is greater than the frosting threshold temperature; a first timing subunit, for starting a timing operation if monitoring that the air conditioner is powered off; and a first turn-off controlling subunit, for turning off the water pump of the air conditioner if the timing reaches a third preset time threshold.
  • the second turn-on controlling unit further includes: a second monitoring subunit, for monitoring an on-and-off state of a defrosting mode after turning on the water pump of the air conditioner when the air conditioner is judged to be in the defrosiing mode; a second timing subunit, for starting a timing operation if monitoring that the defrosting mode stops; and a second turn-off controlling subunit, for controlling to turn off the water pump of the air conditioner after the timing reaches a second preset time threshold.
  • a second monitoring subunit for monitoring an on-and-off state of a defrosting mode after turning on the water pump of the air conditioner when the air conditioner is judged to be in the defrosiing mode
  • a second timing subunit for starting a timing operation if monitoring that the defrosting mode stops
  • a second turn-off controlling subunit for controlling to turn off the water pump of the air conditioner after the timing reaches a second preset time threshold.
  • a water pump of an air conditioner comprising the device for controlling a water pump of an air conditioner according to the aforementioned embodiments.
  • a group of parameters for reflecting whether the water pump of the air conditioner needs to be turned on including a state of the liquid level switch of the air conditioner, a working state of the air conditioner and an outdoor ambient temperature, so as to determine a turn-on timing of the water pump of the air conditioner by obtaining such group of parameters.
  • Such control method effectively solves the problem that the turn-on time of the water pump of the air conditioner in the prior art is not smart enough, so as to make the turn-on time of the water pump of the air conditioner more intelligent, whilst improving the safety of the water pump of the air conditioner, and saving the energy.
  • FIG. 1 is a flow chart of one embodiment of the method for controlling the water pump of the air conditioner according to the present disclosure
  • FIG. 2 is a flow chart of another embodiment of the method for controlling the water pump of the air conditioner according to the present disclosure
  • FIG. 3 is a structural block diagram of one embodiment of the device for controlling the water pump of the air conditioner according to the present disclosure.
  • a method for controlling a water pump of an air conditioner is provided to at least solve the problem that the turn-on timing of the water pump of the air conditioner in the prior art is not smart enough.
  • the control method may be directly applied to an air conditioning unit, for example, a household air conditioning unit, an air conditioning unit for a shopping mall or a workshop, an air conditioning unit for a ship, etc.
  • the present method may also be applied to other devices having the function of an air conditioning unit.
  • the method may be implemented as a built-in program on an air conditioning unit or a device, or may also be implemented in such a manner as to install an application (APP) or install a software on an air conditioning unit or a device.
  • FIG. 1 shows an optional flow chart of the method. As shown in FIG. 1 , the method comprises the following steps S 102 -S 104 :
  • S 104 determining a turn-on timing of the water pump of the air conditioner according to the state of the liquid level switch of the air conditioner, the working state of the air conditioner and the outdoor ambient temperature obtained.
  • a turn-on timing of the water pump of the air conditioner is determined according to the state of the liquid level switch of the air conditioner, the state of operation of the air conditioner and the outdoor ambient temperature obtained.
  • the design solution of setting a plurality of parameters for controlling whether to turn on the water pump of the air conditioner can handle more circumstances in which there is a need to turn on the water pump of the air conditioner under other operational circumstances, so as to solve the problem that the water pump of the air conditioner is not turned on enough in time and it is likely to damage the water pump when turned on again after the water in the chassis of the outdoor unit is frozen. Accordingly, the present disclosure sets a group of parameters reflecting whether the water pump of the air conditioner needs to be turned on, such as to enable more accurately determine whether the air conditioner needs to be turned on by such group of parameters.
  • S 104 specifically includes: first detecting whether the liquid level switch of the air conditioner is in a turn-on state, and if the detection result is that the liquid level switch of the air conditioner is in a turn-on state directly turn on the water pump of the air conditioner; or if the detection result is that the liquid level switch of the air conditioner is not in a turn-on state, further determine whether a current working state of the air conditioner is a heating mode, and to determine a turn-on timing of the water pump of the air conditioner according to the outdoor ambient temperature when the current operation state of the air conditioner is a heating mode.
  • the step of determining a turn-on timing of the water pump of the air conditioner according to the outdoor ambient temperature when the current operation state of the air conditioner is a heating mode specifically includes: comparing the outdoor ambient temperature with a preset frosting threshold temperature when the current operation state of the air conditioner is a heating mode.
  • the preset frosting threshold temperature is a critical temperature for judging whether the condenser tube of the outdoor unit frosts or generates condensed water when the air conditioner is under a heating mode, for example 0 degree.
  • the outdoor unit of the air conditioner may generate condensed water, and at this time the water pump of the air conditioner is controlled to be turned on.
  • the outdoor unit of the air conditioner may frost, and at this time it is necessary to judge whether the air conditioner is in a defrosting mode.
  • the outdoor unit of the air conditioner may generate condensed water at this time, and the water pump of the air conditioner is controlled to be turned on.
  • a group of parameters for reflecting whether the water pump of the air conditioner needs to be turned on including the state of the liquid level switch of the air conditioner, the working state of the air conditioner and an outdoor ambient temperature, so as to determine a turn-on timing of the water pump of the air conditioner by obtaining such group of parameters.
  • Such control method effectively solves the problem that the turn-on time of the water pump of the air conditioner in the prior art is not smart enough, so as to make the turn-on time of the water pump of the air conditioner more intelligent, whilst improving the safety of the water pump of the air conditioner is improved, and saving the energy.
  • the present disclosure not only smartly controls the turn-on timing of the water pump of the air conditioner, but also smartly controls the turn-off timing of the water pump of the air conditioner.
  • the control method further comprises: when the liquid level switch of the air conditioner is in a turn-on state, after turning on the water pump of the air conditioner, monitoring whether the liquid level switch of the air conditioner is off; starting a timing operation if monitoring that the liquid level switch of the air conditioner is off; and turning off the water pump of the air conditioner if the timing reaches a first preset time threshold.
  • the water pump is turned off when the liquid level switch of the air conditioner is off to reach a first preset time threshold. That is, the present disclosure delays the turn-off time of the water pump of the air conditioner, to drain the condensed water and avoid the problems resulting from residual condensed water.
  • the smart control of the turn-off timing of the water pump of the air conditioner further includes: when the outdoor ambient temperature is greater than the frosting threshold temperature, after turning on the water pump of the air conditioner, monitoring an on-and-off state of the air conditioner; starting a timing operation if monitoring that the air conditioner is powered off; and turning off the water pump of the air conditioner if the timing reaches a third preset time threshold.
  • the smart control of the turn-off timing of the water pump of the air conditioner further comprises: when the air conditioner is judged to be in the defrosting mode, after turning on the water pump of the air conditioner, monitoring an on-and-off state of the defrosting mode; and starting a timing operation if monitoring that the defrosting mode stops; controlling to turn off the water pump of the air conditioner if the timing reaches a second preset time threshold.
  • the water pump is not turned off immediately. Rather, the water pump is turned off when the air conditioner is turned off to reach a third preset time threshold, or the defrosting of the air conditioner is accomplished to reach a second preset time threshold.
  • the turn-off time of the water pump of the air conditioner is delayed, to drain the condensed water and avoid the problems resulting from residual condensed water.
  • the control method of the present disclosure before obtaining the state of a liquid level switch of the air conditioner, the working state of the air conditioner and an outdoor ambient temperature, the control method of the present disclosure further comprises: in response to a triggered adjustment instruction, adjusting at least one of the first preset time threshold, the second preset time threshold and the third preset time threshold by a preset communication interface, wherein the air conditioner is preserved with a preset communication interface. That is, in the present disclosure, the first preset time threshold, the second preset time threshold, and the third preset time threshold are time constants which may be set according to different unit sizes and environmental requirements.
  • FIG. 2 shows an alternative flow chart of the method, which is illustrated below in combination with FIG. 2 .
  • the method comprises:
  • t1, t2 and t3 are time constants, and the time may be set according to different unit sizes and environmental requirements.
  • a group of parameters for reflecting whether the water pump of the air conditioner needs to be turned on including the state of the liquid level switch of the air conditioner, the working state of the air conditioner and an outdoor ambient temperature, so as to determine a turn-on timing of the water pump of the air conditioner by obtaining such group of parameters.
  • Such control method effectively solves the problem that the turn-on time of the water pump of the air conditioner in the prior art is not smart enough, so as to make the turn-on time of the water pump of the air conditioner more intelligent, whilst improving the safety of the water pump of the air conditioner is improved, and saving the energy.
  • the second aspect of the present disclosure further provides a device for controlling the water pump of the air conditioner.
  • FIG. 3 shows an alternative structural block diagram of the device. As shown in FIG. 3 , the device comprises:
  • an obtaining module 302 for obtaining a state of a liquid level switch of the air conditioner, a working state of the air conditioner and an outdoor ambient temperature;
  • control module 304 connected with the obtaining module 302 , for determining a turn-on timing of the water pump of the air conditioner according to the state of the liquid level switch of the air conditioner, the working state of the air conditioner and the outdoor ambient temperature obtained.
  • a group of parameters for reflecting whether the water pump of the air conditioner needs to be turned on including the state of the liquid level switch of the air conditioner, the state of operation of the air conditioner and the outdoor ambient temperature, so as to determine a turn-on timing of the water pump of the air conditioner by obtaining such group of parameters.
  • Such control method effectively solves the problem that the turn-on time of the water pump of the air conditioner in the prior art is not smart enough, so as to make the turn-on time of the water pump of the air conditioner more intelligent, whilst improving the safety of the water pump of the air conditioner is improved, and saving the energy.
  • control module includes: a detecting module, for detecting whether the liquid level switch of the air conditioner is in a turn-on state; a first turn-on controlling unit, for controlling to turn on the water pump of the air conditioner when the liquid level switch of the air conditioner is in a turn-on state; and a second turn-on controlling unit, for determining whether a current operation state of the air conditioner is a heating mode when the liquid level switch of the air conditioner is not in a turn-on state, and determining a turn-on timing of the water pump of the air conditioner according to the outdoor ambient temperature when the current operation state of the air conditioner is a heating mode.
  • control module further includes: a monitoring unit, for monitoring whether the liquid level switch of the air conditioner is off after controlling to turn on the water pump of the air conditioner when the liquid level switch of the air conditioner is in a turn-on state; a timing unit, for starting a timing operation if monitoring that the liquid level switch of the air conditioner is off; and a turn-off controlling unit, for controlling to turn off the water pump of the air conditioner if the timing reaches a first preset time threshold.
  • the second turn-on controlling unit further includes: a comparing subunit, for comparing the outdoor ambient temperature with a preset frosting threshold temperature when the current working state of the air conditioner is a heating mode; a first turn-on controlling subunit, for controlling to turn on the water pump of the air conditioner when the outdoor ambient temperature is greater than the frosting threshold temperature; and a second turn-on controlling subunit, for judging whether the air conditioner enters a defrosting mode when the outdoor ambient temperature is less than or equal to the frosting threshold temperature, and controlling to turn on the water pump of the air conditioner when the air conditioner is judged to enter the defrosting mode.
  • the second turn-on controlling unit further includes: a first monitoring subunit, for monitoring an on-and-off state of the air conditioner after controlling to turn on the water pump of the air conditioner when the outdoor ambient temperature is greater than the frosting threshold temperature; a first timing subunit, for starting a timing operation if monitoring to obtain that the air conditioner is powered off; and a first turn-off controlling subunit, for controlling to turn off the water pump of the air conditioner if the timing reaches a third preset time threshold.
  • the second turn-on controlling unit further includes: a second monitoring subunit, for monitoring an on-and-off state of a defrosting mode after controlling to turn on the water pump of the air conditioner when the air conditioner is judged to enter the defrosting mode; a second timing subunit, for starting a timing operation if monitoring to obtain that the defrosting mode stops; and a second turn-off controlling subunit, for controlling to turn off the water pump of the air conditioner after the timing reaches a second preset time threshold.
  • a second monitoring subunit for monitoring an on-and-off state of a defrosting mode after controlling to turn on the water pump of the air conditioner when the air conditioner is judged to enter the defrosting mode
  • a second timing subunit for starting a timing operation if monitoring to obtain that the defrosting mode stops
  • a second turn-off controlling subunit for controlling to turn off the water pump of the air conditioner after the timing reaches a second preset time threshold.
  • the third aspect of the present disclosure further provides a water pump of an air conditioner, comprising the aforementioned device for controlling a water pump of an air conditioner.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Fuzzy Systems (AREA)
  • Automation & Control Theory (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Air Conditioning Control Device (AREA)
US16/080,821 2018-03-30 2018-07-03 Water pump of an air conditioner as well as method and device for controlling the same Active 2039-01-15 US10883735B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201810297967.9 2018-03-30
CN201810297967 2018-03-30
CN201810297967.9A CN108518796B (zh) 2018-03-30 2018-03-30 空调水泵的控制方法、装置及空调水泵
PCT/CN2018/094245 WO2019184127A1 (fr) 2018-03-30 2018-07-03 Procédé et appareil de commande pour une pompe à eau de climatiseur et pompe à eau de climatiseur

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Publication Number Publication Date
US20200049359A1 US20200049359A1 (en) 2020-02-13
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US20200049359A1 (en) 2020-02-13
WO2019184127A1 (fr) 2019-10-03
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